EP3568514B1 - Device for wetting a plurality of threads, and metering pump for such a device - Google Patents

Device for wetting a plurality of threads, and metering pump for such a device Download PDF

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Publication number
EP3568514B1
EP3568514B1 EP18700030.2A EP18700030A EP3568514B1 EP 3568514 B1 EP3568514 B1 EP 3568514B1 EP 18700030 A EP18700030 A EP 18700030A EP 3568514 B1 EP3568514 B1 EP 3568514B1
Authority
EP
European Patent Office
Prior art keywords
planetary gear
housing
housing plates
bores
gear set
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18700030.2A
Other languages
German (de)
French (fr)
Other versions
EP3568514A1 (en
Inventor
Michael Schröder
Heike JUNGBLUTH
Dietrich Witzler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oerlikon Textile GmbH and Co KG
Original Assignee
Oerlikon Textile GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE102017000760.8A external-priority patent/DE102017000760A1/en
Application filed by Oerlikon Textile GmbH and Co KG filed Critical Oerlikon Textile GmbH and Co KG
Publication of EP3568514A1 publication Critical patent/EP3568514A1/en
Application granted granted Critical
Publication of EP3568514B1 publication Critical patent/EP3568514B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/084—Toothed wheels
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
    • D06B23/20—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation
    • D06B23/205—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation for adding or mixing constituents of the treating material
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/096—Humidity control, or oiling, of filaments, threads or the like, leaving the spinnerettes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B5/00—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating
    • D06B5/02—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through moving materials of indefinite length
    • D06B5/06—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through moving materials of indefinite length through yarns, threads or filaments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
    • D06B3/04—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of yarns, threads or filaments
    • D06B3/045—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of yarns, threads or filaments in a tube or a groove
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F04C15/008—Prime movers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2220/00—Application
    • F04C2220/24—Application for metering throughflow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/70—Use of multiplicity of similar components; Modular construction

Definitions

  • the invention relates to a device for wetting several threads according to the preamble of claim 1 and a dosing pump, in particular for use in a device for wetting threads.
  • the fluid is used to ensure the cohesion of the filaments of the thread.
  • the fluid is used to cool a previously heated thread. Irrespective of whether the fluid is used for the preparation or for cooling the threads, it is necessary to continuously feed the fluid to the running thread with high dosing accuracy.
  • groups of threads are guided and treated in parallel next to one another, so that the fluid has to be supplied to several wetting agents in parallel in the same dosages.
  • a generic device for wetting several threads and a generic metering pump are for example from EP 1 039 011 A2 known.
  • the metering flows of a fluid are generated by a plurality of conveying means of a metering pump.
  • the funds are formed by gear pairs of a planetary gear set, with several planetary gear sets being held between housing plates.
  • Planetary gear set formed from a sun gear and a plurality of planetary gears, the sun gear being arranged on a drive shaft and in which the planetary gears are guided by axes which are rotatably mounted in the housing plates.
  • the pump outlets which are each connected to the outlet zones of the planetary gear sets, are formed on the housing plates.
  • a wetting agent is assigned to each of the pump outlets, which are connected to the dosing pump via separate delivery lines.
  • An embodiment of a device for wetting multiple threads and a metering pump is by WO 2013/110633 A1 known.
  • Fluids consisting of an oil-water emulsion are used both for the preparation of threads and for the cooling of threads.
  • emulsions have the disadvantage of a limited service life. Bacteria can form in the fluid over longer periods of time, which leads to outgassing and thus to the formation of bubbles.
  • this object is achieved by a device for wetting a plurality of threads having the features of claim 1 and by a dosing pump having the features of claim 8 .
  • the invention is based on the finding that a dead volume in a pair of gears is significantly influenced by a head clearance that occurs between the gears and a housing wall.
  • the planetary gear sets are each freely guided according to the invention by a centering plate between adjacent housing plates.
  • the invention deliberately dispenses with a pin guide for the planet gears, which also represent additional dead spaces on the housing plates.
  • the invention uses a passage opening formed in the planetary gears in order to supply the fluid to the gear pair in question.
  • the planet gears are constantly flushed, which prevents fluid from being deposited in the axial gaps of the planetary gear set.
  • the device according to the invention is therefore particularly suitable for metering oil-containing fluid emulsions for wetting several threads to the individual threads.
  • the smallest amounts of metering streams in the range of 0.05 ml/min can be advantageously used. up to 5 ml/min. for wetting a thread.
  • the fluid is supplied to the gear pairs on the planetary gear set in the same way.
  • the further training of Invention preferably executed, in which the channel system has a plurality of housing bores in the housing plates, which open into the passage openings of the planet wheels of the planetary gear set.
  • the housing bores have a plurality of inlet bores in one of the housing plates and a plurality of axial distribution bores in the housing plates arranged between adjacent planetary gear sets. In this way, the fluid can be fed in the axial direction to each of the planetary gear sets directly through the passage openings of the planetary gears.
  • the filling of the inlet zones of the planetary gearsets is advantageously ensured by a plurality of distribution grooves which, according to an advantageous development of the invention, are formed on a side of the housing plates facing the planetary gear.
  • the distribution grooves each extend between one of the passage openings of the planetary gears and one of several inlet zones of the planetary gear sets.
  • the development of the invention is preferably implemented in which the planetary gear sets are connected to a drive shaft and in which the drive shaft is coupled to a stepper motor. In this way, even low speeds can be adjusted with high precision and uniformity.
  • a particularly compact unit can be formed in that the stepper motor has a housing on the outer housing plate of the metering pump is held and on which the drive shaft is directly connected to a rotor of the stepping motor.
  • the drive shaft of the planetary gear sets acts directly as the motor shaft of the stepper motor.
  • the development of the invention is particularly advantageous, in which the pump outlets associated in one of the planetary gear sets are each designed as a plug-in connection in one of the housing plates. This means that, for example, hose lines can be held directly to the pump outlets with a simple plug-in connection. Elaborate threaded fasteners, which require a high level of installation effort, are therefore unnecessary.
  • the metering pump according to the invention is therefore particularly suitable for generating a larger number of evenly generated metering flows of the fluid.
  • the planetary gear sets are preferably designed with several planet gears in order to obtain a high density of pump outlets per housing plate.
  • the number of planetary gears per planetary gear set is in the range from 2 to 6 planetary gears.
  • the exemplary embodiment has several wetting agents 1.1 to 1.6.
  • the number of wetting agents is exemplary. In principle, the number of wetting agents depends on the number of threads that are to be wetted in parallel next to one another as a group.
  • a wetting agent 1.1 to 1.6 a wetting body 2 is shown here by way of example, which has an open wetting groove 3 on one side. In the wetting groove 3 opens a metering hole 4.
  • the metering hole 4 is connected to one of the delivery lines 5.1 to 5.6.
  • wetting agent in the form of a wetting body 2 is exemplary.
  • such wetting agents can be used to prepare a thread or, for example, to cool a thread.
  • the wetting agents are designed accordingly.
  • elongated wetting grooves are used to cool threads, to which the fluid is fed in an inlet area.
  • Each of the wetting agents 1.1 to 1.6 is connected to a metering pump 6 via a separate delivery line 5.1 to 5.6.
  • the metering pump 6 has a plurality of conveying means, each of which is assigned one of a plurality of pump outlets 7.1 to 7.6.
  • the delivery lines 5.1 to 5.6 are connected to the pump outlets 7.1 to 7.6.
  • the dosing pump 6 is connected via a pump inlet 17 and a feed line 30 to a fluid reservoir, not shown here, which stores a fluid intended for wetting.
  • the metering pump 6 is driven by an electric motor 31, which could be designed as a stepping motor, for example.
  • the metering pump 6 consists of several housing plates 12.1 to 12.4, which in this case have a circular cross section.
  • the housing plates 12.1 to 12.4 enclose between them a plurality of planetary gear sets 8.1 to 8.3, which are each enclosed within a centering plate 11.1 to 11.3.
  • the housing plates 12.1 to 12.4 and the centering plates 11.1 to 11.3 lying between them are held together in a pressure-tight manner.
  • Each of the planetary gear sets 8.1 to 8.3 forms a plurality of conveying means, which are explained below using the illustration in 4 be described in more detail.
  • one of the planetary gear sets in this case the planetary gear set 8.1, has two outer planet gears 9.1 and 9.2 and a sun gear 10 arranged in the center.
  • the sun gear 10 is held on the circumference of a drive shaft 19 via a shaft hub connection 29 .
  • the planet wheels 9.1 and 9.2 are arranged opposite one another on both sides of the sun wheel 10 and are in engagement with the sun wheel 10.
  • the planetary gears 9.1 and 9.2 are guided freely in the centering plate 11.1.
  • the centering plate 11.1 In the area just before and just behind the meshing of the planet gears 9.1 and 9.2 with the sun gear 10, the centering plate 11.1 has a free space that acts as an inlet zone and outlet zone.
  • a first run-in zone 27.1 is formed in the upper area between the planetary gear 9.1 and the sun gear 10.
  • the run-out zone 28.1 is formed on the side opposite to the tooth engagement.
  • the lead-in zone is also used in the professional world referred to as the suction space and the outlet zone as the pressure space.
  • the run-out zone 28.2 is the run-out zone 28.2.
  • the inside 4 illustrated planetary gear set 8.1 thus forms two funds that generate two separate metering flows of the fluid.
  • the number of planet gears 9.1 and 9.2 is exemplary. Thus, more than two planetary gears could also be assigned to the sun gear 10 .
  • the inlet zones 27.1 and 27.2 are each assigned a distribution groove 18.1 and 18.2, which are formed on one side of the housing plate 12.2.
  • the distribution grooves 18.1 and 18.2 in this case extend from the inlet zones 27.1 and 27.2 in each case to a passage opening 13 which is introduced into the planet gears 9.1 and 9.2.
  • all planet gears 9.1 and 9.2 of the planetary gear sets 8.1 to 8.3 each have a passage opening 13.
  • the passage openings 13 are preferably formed in the central area of the planet gears 9.1 and 9.2.
  • the passage openings 13 are connected to a pump inlet 17 via a channel system 14 .
  • the channel system 14 is formed by a plurality of housing bores in the housing plates 12.1, 12.2 and 12.3.
  • several axially running Running distribution holes 15, which penetrate the housing plates 12.2 and 12.3 and connect the passage openings 13 of the planetary gears 9.1 and 9.2 in the planetary gear sets 8.1 to 8.3.
  • the pump inlet 17 is formed on the outer housing plate 12.1, through which the drive shaft 19 passes.
  • the pump inlet 17 is connected to an inlet chamber 20 inside the housing plate 12.1 via an inlet channel 16.1.
  • the inlet chamber 20 is designed concentrically to the drive shaft 19 and is sealed off from the outside by a seal 21 .
  • the inlet chamber 20 is connected to the passage openings 13 in the planet gears 9.1 and 9.2 of the first planetary gear set 8.1 by two inlet bores 16.2 and 16.3 arranged obliquely as housing bores.
  • a fluid supplied via the pump inlet 17 can thus be supplied to the passage openings 13 in the planet gears of all planetary gear sets 8.1 to 8.3.
  • the housing plates 12.3 and 12.4 also have several distribution grooves 18.1 and 18.2 on the side facing the planetary gear sets 8.2 and 8.3, in order to connect the passage openings 13 of the planetary gears 9.1 and 9.2 with the inlet zones 27.1 and 27.2 of the planetary gear sets 8.2 and 8.3 .
  • outlet zones 28.1 and 28.2 of the planetary gearset 8.1 are each connected to a pump outlet via an axial outlet bore 26.1 and 26.2 in the housing plate 12.2.
  • the axial outlet bores 26.1 and 26.2 each open into a radial outlet bore 25.1 and 25.2 of the housing plate 12.2.
  • the radial outlet bores 25.1 and 25.2 connect the pump outlets 7.1 and 7.2 formed on the circumference of the housing plate 12.2.
  • the pump outlets 7.1 and 7.2 each have a plug-in connection 24, which enables a line end of the delivery line to be connected directly.
  • the pump outlets 7.3 to 7.6 formed in the housing plates 12.3 and 12.4 are connected in the same way via a respective radial outlet bore 25.1 and 25.2 and an axial outlet bore 26.1 and 26.2 to the outlet zones 28.1 and 28.2 of the planetary gear sets 8.2 and 8.3.
  • the drive shaft 19 provided for driving the planetary gear sets 8.1 and 8.3 penetrates the housing plates 12.1, 12.2 and 12.3 and is rotatably mounted with one end of the housing plate 12.4.
  • the drive shaft 19 is connected to an electric motor with a drive end not shown in detail here. In the figure 5 a possible embodiment for driving the drive shaft 19 is shown.
  • FIG 5 A cross-sectional view of an electric motor is shown schematically, which in this embodiment could be a stepping motor.
  • the electric motor 31 has a motor housing 32 which is held directly on the housing plate 12.1.
  • the drive shaft 19 protrudes with a free drive end 33 inside the electric motor 31.
  • On the circumference of the drive end 33 is a rotor 34 which interacts with a stator 35 . In this way, the drive shaft 19 can be driven directly via the electric motor 31 .
  • the metering pump 6 is driven by the electric motor 31 at a predetermined speed.
  • a fluid is sucked in through the planetary gear sets 8.1 to 8.3 via the pump inlet 17 and the feed line 30 and fed to the respective inlet zones 27.1 and 27.2.
  • the fluid gets here in each case into the passage openings 13 of the planet gears 9.1 and 9.2 and flows through the axial gaps evenly.
  • the planetary gears 9.1 and 9.2 that are in mesh are driven by the rotation of the sun gears 10, so that the fluid is conveyed from the inlet zone to the outlet zone.
  • the metered fluid flow then reaches the delivery lines 5.1 to 5.6 via the pump outlets 7.1 to 7.6 and is fed to the wetting agents 1.1 to 1.6.
  • a continuous flushing of the axial gaps in the planetary gear sets 8.1 to 8.3 is ensured, so that there is a continuous flow of fluid within the pump.
  • the device according to the invention thus enables continuous operation with substantially evenly metered fluid flows in order to wet the threads. In this respect, high dosing accuracy can be guaranteed over a long service life.
  • the inventive device according to the embodiment 1 is operated with a metering pump that has several planetary gear sets for the formation of funds.
  • Each of the planetary gear sets consists of two planet gears and one sun gear.
  • This training is exemplary.
  • a planetary gear set with several planetary gears could already be used in accordance with the wetting agent of the device according to the invention 1 to be supplied with a fluid.
  • Such an embodiment of a metering pump 6 is in the 6 , 7 and 8th shown in several views. the 6 and 7 show a longitudinal sectional view and 8 a cross-sectional view of the metering pump 6. Insofar as no express reference is made to one of the figures, the following description applies to all figures.
  • the embodiment of the metering pump 6 according to Figures 6 to 8 consists of the housing plates 12.1 and 12.2, which also have a circular cross-section in this example. At this point, however, it should be mentioned that the outer contour of the housing plates 12.1 and 12.2 can have any shape, for example an angular shape.
  • the housing plates 12.1 and 12.2 enclose between them a planetary gear set 8.1 which is enclosed within a centering plate 11.1.
  • the housing plates 12.1 and 12.2 and the centering plate 11.1 in between are held together in a pressure-tight manner.
  • the planetary gearset 8.1 in this exemplary embodiment has six outer planetary gears 9.1 to 9.6 and a sun gear 10 arranged in the center.
  • the sun wheel 10 is held on the circumference of a drive shaft 19 via a shaft hub connection 29 .
  • the planet gears 9.1 to 9.6 are distributed evenly over the circumference of the sun gear 10 and are in engagement with the sun gear 10 .
  • the planetary gears 9.1 to 9.6 are in the centering plate 11.1 freely managed.
  • the planetary gear set 8.1 thus forms a total of six conveying means in order to generate six separate metered streams of a fluid for wetting threads at the pump outlets 7.1 to 7.6.
  • Each of the planet gears 9.1 to 9.6 thus has a separate through-opening 13, which are jointly connected to a pump inlet 17 via a channel system 14, as can be seen from the illustration in FIG 6 emerges.
  • the channel system 14 is formed by a plurality of housing bores, which extend as inlet bores 16.2 to 16.7 in the housing plate 12.1 from a middle inlet chamber 20 to the side wall facing the planetary gear set 8.1.
  • the inlet bores 16.2 to 16.7 each open into one of the passage openings 13 in the planet gears 9.1 to 9.6.
  • the pump inlet 17 is connected to the inlet chamber 20 via an inlet channel 16.1.
  • the pump inlet 17 is designed with a plug-in connection 24, so that a line end of the feed line can be connected directly.
  • the pump inlet 17 is formed on the outer housing plate 12.1, through which the drive shaft 19 passes.
  • the drive shaft 19 and the inlet chamber 20 are sealed off from the outside by a seal 21 in the housing plate 12.1.
  • the outlet zones 28 of the planetary gear set 8.1 are each connected to one of the pump outlets 7.1 to 7.6 via an axial outlet bore 26 in the housing plate 12.2.
  • the axial outlet bores 26 each open into a radial outlet bore 25 of the housing plate 12.2.
  • the radial outlet bores 25 connect the pump outlets 7 formed on the circumference of the housing plate 12.2 with the respective outlet zones of the respective pair of gear wheels.
  • this embodiment has a total of six pump outlets, with in 7 only the pump outlets 7.1 and 7.4 are shown.
  • the pump outlets 7.1 and 7.4 likewise each have a plug-in connection 24, which enables direct connection of one line end of the delivery line.
  • the drive shaft 19 is mounted at one end in the housing plate 12.2.
  • the drive shaft 19 is coupled to a drive with an opposite end, not shown here.
  • the connection between the sun gear 10 of the planetary gear set 8.1 and the drive shaft 19 is implemented by a shaft hub connection 29 in this exemplary embodiment.
  • a total of six conveying means can thus be formed, which generate six evenly metered fluid streams and deliver them via the pump outlets 7.1 to 7.6.
  • the embodiment of the metering pump is also suitable with only one planetary gear set 8.1 to 1 perform device shown.
  • the design of the housing bores in the illustrated exemplary embodiments of the metering pump according to the invention are exemplary. It is essential here that the pump inlet is connected to the passage openings in the planet gears. Several pump inlets can also be used here in order to change the design of the channel system. In order to obtain a wetting that is as trouble-free as possible without outgassing, the supply of the fluid via the planet gears is particularly advantageous. This achieves an even flow around the planetary gears, which are integrated into the planetary gear set with minimal dead volume.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Rotary Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zur Benetzung mehrerer Fäden gemäß dem Oberbegriff des Anspruchs 1 sowie eine Dosierpumpe insbesondere zur Verwendung in einer Vorrichtung zum Benetzen von Fäden.The invention relates to a device for wetting several threads according to the preamble of claim 1 and a dosing pump, in particular for use in a device for wetting threads.

Bei der Herstellung und Bearbeitung von synthetischen Fäden ist es allgemein bekannt, die Fäden mit einem Fluid zu benetzen. So wird bei der Herstellung von synthetischen Fäden nach dem Schmelzspinnen das Fluid genutzt, um den Zusammenhalt der Filamente des Fadens zu gewährleisten. In einem Texturierprozess zur Nachbehandlung der synthetischen Fäden wird das Fluid hingegen zur Kühlung eines zuvor erwärmten Fadens genutzt. Unabhängig, ob das Fluid zur Präparierung oder zur Kühlung der Fäden dient, ist es erforderlich, das Fluid mit hoher Dosiergenauigkeit kontinuierlich dem laufenden Faden zuzuführen. Zudem werden beim Schmelzspinnen und auch beim Texturieren Gruppen von Fäden parallel nebeneinander geführt und behandelt, so dass das Fluid an mehreren Benetzungsmitteln parallel in gleichen Dosiermengen zugeführt werden muss.In the production and processing of synthetic threads, it is generally known to wet the threads with a fluid. For example, in the production of synthetic threads, after melt spinning, the fluid is used to ensure the cohesion of the filaments of the thread. In a texturing process for the post-treatment of the synthetic threads, on the other hand, the fluid is used to cool a previously heated thread. Irrespective of whether the fluid is used for the preparation or for cooling the threads, it is necessary to continuously feed the fluid to the running thread with high dosing accuracy. In addition, during melt spinning and also during texturing, groups of threads are guided and treated in parallel next to one another, so that the fluid has to be supplied to several wetting agents in parallel in the same dosages.

Eine gattungsgemäße Vorrichtung zur Benetzung mehrerer Fäden sowie eine gattungsgemäße Dosierpumpe sind beispielsweise aus der EP 1 039 011 A2 bekannt.A generic device for wetting several threads and a generic metering pump are for example from EP 1 039 011 A2 known.

Bei der bekannten Vorrichtung werden die Dosierströme eines Fluids durch mehrere Fördermittel einer Dosierpumpe erzeugt. Die Fördermittel werden durch Zahnradpaarungen eines Planetenradsatzes gebildet, wobei mehrere Planetenradsätze zwischen Gehäuseplatten gehalten sind. Hierbei wird jeder Planetenradsatz aus einem Sonnenrad und mehreren Planetenrädern gebildet, wobei das Sonnenrad an einer Antriebswelle angeordnet ist und bei welcher die Planetenräder durch drehbar in den Gehäuseplatten gelagerten Achsen geführt sind. An den Gehäuseplatten sind die Pumpenauslässe ausgebildet, die jeweils mit den Auslasszonen der Planetenradsätze verbunden sind. Jedem der Pumpenauslässe ist ein Benetzungsmittel zugeordnet, die über separate Förderleitungen mit der Dosierpumpe verbunden sind. Ein Ausführungsbeispiel einer Vorrichtung zur Benetzung mehrerer Fäden sowie eine Dosierpumpe ist durch die WO 2013/110633 A1 bekannt.In the known device, the metering flows of a fluid are generated by a plurality of conveying means of a metering pump. The funds are formed by gear pairs of a planetary gear set, with several planetary gear sets being held between housing plates. Here everyone will Planetary gear set formed from a sun gear and a plurality of planetary gears, the sun gear being arranged on a drive shaft and in which the planetary gears are guided by axes which are rotatably mounted in the housing plates. The pump outlets, which are each connected to the outlet zones of the planetary gear sets, are formed on the housing plates. A wetting agent is assigned to each of the pump outlets, which are connected to the dosing pump via separate delivery lines. An embodiment of a device for wetting multiple threads and a metering pump is by WO 2013/110633 A1 known.

Mit der bekannten Vorrichtung lässt sich somit eine Mehrzahl von Fäden parallel mit einem Fluid benetzen. Sowohl zur Präparation von Fäden als auch zur Kühlung von Fäden werden Fluide verwendet, die aus einer Öl-Wasser-Emulsion bestehen. Derartige Emulsionen besitzen jedoch den Nachteil einer begrenzten Standzeit. So können sich bei längeren Standzeiten Bakterien in dem Fluid ausbilden, die zu Ausgasungen und damit zu einer Bläschenbildung führt.With the known device, a plurality of threads can thus be wetted in parallel with a fluid. Fluids consisting of an oil-water emulsion are used both for the preparation of threads and for the cooling of threads. However, such emulsions have the disadvantage of a limited service life. Bacteria can form in the fluid over longer periods of time, which leads to outgassing and thus to the formation of bubbles.

Bei der bekannten Vorrichtung zur Benetzung mehrerer Fäden wurde nun beobachtet, dass selbst die in Toträumen der Dosierpumpe gehaltenen Fluidreste derartige Ausgasungen bewirken können.In the case of the known device for wetting several threads, it has now been observed that even the fluid residues held in dead spaces of the dosing pump can cause such outgassing.

Es ist daher Aufgabe der Erfindung, die gattungsgemäße Vorrichtung zur Benetzung mehrerer Fäden sowie eine gattungsgemäße Dosierpumpe derart weiterzubilden, dass eine möglichst gleichmäßige Benetzung mit geringen Dosierströmen des Fluids parallel an einer Mehrzahl von Fäden ausführbar ist.It is therefore the object of the invention to further develop the generic device for wetting several threads and a generic dosing pump in such a way that wetting as uniform as possible with low metering flows of the fluid can be carried out in parallel on a plurality of threads.

Diese Aufgabe wird erfindungsgemäß durch eine Vorrichtung zur Benetzung mehrerer Fäden mit den Merkmalen nach Anspruch 1 sowie mit einer Dosierpumpe mit den Merkmalen nach Anspruch 8 gelöst. Vorteilhafte Weiterbildungen der Erfindung sind durch die Merkmale und Merkmalskombinationen der jeweiligen Unteransprüche definiert.According to the invention, this object is achieved by a device for wetting a plurality of threads having the features of claim 1 and by a dosing pump having the features of claim 8 . Advantageous developments of the invention are defined by the features and feature combinations of the respective dependent claims.

Die Erfindung beruht auf die Erkenntnis, dass ein Totvolumen bei einer Zahnradpaarung wesentlich durch ein Kopfspiel, das sich zwischen den Zahnrädern und einer Gehäusewandung einstellt, beeinflusst wird. Um derartige Kopfspiele bei einem Planetenradsatz möglichst gering auszuführen, sind die Planetenradsätze erfindungsgemäß jeweils durch eine Zentrierplatte zwischen benachbarten Gehäuseplatten frei geführt. Somit verzichtet die Erfindung bewusst auf eine Zapfenführung der Planetenräder, die zudem zusätzliche Toträume an den Gehäuseplatten darstellen. Im Gegenteil nutzt die Erfindung eine in den Planetenrädern ausgebildete Durchlassöffnung dazu, um das Fluid der betreffenden Zahnradpaarung zuzuführen. Insoweit findet eine ständige Umspülung der Planetenräder statt, die eine Ablagerung eines Fluids in den Axialspalten des Planetenradsatzes verhindert. Die erfindungsgemäße Vorrichtung ist daher besonders geeignet, um ölhaltige Fluidemulsionen zur Benetzung mehrerer Fäden dosiert den einzelnen Fäden zuzuführen. So lassen sich vorteilhaft kleinste Mengen an Dosierströmen im Bereich von 0,05 ml/min. bis 5 ml/min. zur Benetzung eines Fadens realisieren.The invention is based on the finding that a dead volume in a pair of gears is significantly influenced by a head clearance that occurs between the gears and a housing wall. In order to keep such head clearances as small as possible in a planetary gear set, the planetary gear sets are each freely guided according to the invention by a centering plate between adjacent housing plates. Thus, the invention deliberately dispenses with a pin guide for the planet gears, which also represent additional dead spaces on the housing plates. On the contrary, the invention uses a passage opening formed in the planetary gears in order to supply the fluid to the gear pair in question. In this respect, the planet gears are constantly flushed, which prevents fluid from being deposited in the axial gaps of the planetary gear set. The device according to the invention is therefore particularly suitable for metering oil-containing fluid emulsions for wetting several threads to the individual threads. In this way, the smallest amounts of metering streams in the range of 0.05 ml/min can be advantageously used. up to 5 ml/min. for wetting a thread.

Um eine Mehrzahl von Fäden gleichmäßig mit einem dosierten Fluidstrom zu benetzen, wird das Fluid an dem Planetenradsatz in gleicher Art und Weise den Zahnradpaarungen zugeführt. Hierzu ist die Weiterbildung der Erfindung bevorzugt ausgeführt, bei welcher das Kanalsystem mehrere Gehäusebohrungen in den Gehäuseplatten aufweist, die in den Durchlassöffnungen der Planetenrädern des Planetenradsatzes münden.In order to wet a plurality of threads evenly with a metered flow of fluid, the fluid is supplied to the gear pairs on the planetary gear set in the same way. For this purpose, the further training of Invention preferably executed, in which the channel system has a plurality of housing bores in the housing plates, which open into the passage openings of the planet wheels of the planetary gear set.

Bevorzugt werden mehrere Planetenradsätze parallel nebeneinander genutzt, um eine große Anzahl von Fäden gleichzeitig zu benetzen. Hierzu weisen die Gehäusebohrungen mehrere Einlassbohrungen in einer der Gehäuseplatten und mehrere axiale Verteilbohrungen in den zwischen benachbarten Planetenradsätzen angeordneten Gehäuseplatten aufweisen. So lässt sich das Fluid in axialer Richtung jedem der Planetenradsätze unmittelbar durch die Durchlassöffnungen der Planetenräder zuführen.Several planetary gear sets are preferably used in parallel next to one another in order to wet a large number of threads at the same time. For this purpose, the housing bores have a plurality of inlet bores in one of the housing plates and a plurality of axial distribution bores in the housing plates arranged between adjacent planetary gear sets. In this way, the fluid can be fed in the axial direction to each of the planetary gear sets directly through the passage openings of the planetary gears.

Die Befüllung der Einlaufzonen der Planetenradsätze wird vorteilhaft durch mehrere Verteilnuten gewährleistet, die gemäß einer vorteilhaften Weiterbildung der Erfindung an einer den Planetenrad zugewandten Seite der Gehäuseplatten ausgebildet sind. Die Verteilnuten erstrecken sich dabei jeweils zwischen einer der Durchlassöffnungen der Planetenräder und einer von mehreren Einlaufzonen der Planetenradsätze.The filling of the inlet zones of the planetary gearsets is advantageously ensured by a plurality of distribution grooves which, according to an advantageous development of the invention, are formed on a side of the housing plates facing the planetary gear. The distribution grooves each extend between one of the passage openings of the planetary gears and one of several inlet zones of the planetary gear sets.

Damit auch geringe Mengen an Dosierströmen des Fluids kontinuierlich den Fäden zuführbar sind, ist die Weiterbildung der Erfindung bevorzugt ausgeführt, bei welcher die Planetenradsätze mit einer Antriebswelle verbunden sind und bei welcher die Antriebswelle mit einem Schrittmotor gekoppelt ist. So lassen sich auch niedrige Drehzahlen mit hoher Präzision und Gleichmäßigkeit einstellen.So that even small amounts of metered flows of the fluid can be fed continuously to the threads, the development of the invention is preferably implemented in which the planetary gear sets are connected to a drive shaft and in which the drive shaft is coupled to a stepper motor. In this way, even low speeds can be adjusted with high precision and uniformity.

Eine besonders kompakte Einheit lässt sich dadurch bilden, dass der Schrittmotor mit einem Gehäuse an der äußeren Gehäuseplatte der Dosierpumpe gehalten ist und an welcher die Antriebswelle direkt mit einem Rotor des Schrittmotors verbunden ist. So wirkt die Antriebswelle der Planetenradsätze unmittelbar als Motorwelle des Schrittmotors.A particularly compact unit can be formed in that the stepper motor has a housing on the outer housing plate of the metering pump is held and on which the drive shaft is directly connected to a rotor of the stepping motor. The drive shaft of the planetary gear sets acts directly as the motor shaft of the stepper motor.

Da derartige Vorrichtung zur Benetzung mehrerer Fäden vorzugsweise für eine größere Anzahl von Fäden im Bereich von 12 bis 32 Fäden genutzt werden und somit insgesamt 12 bis 32 Förderleitungen mit den entsprechenden Anzahlen von Pumpenauslässen zu verbinden sind, ist die Weiterbildung der Erfindung besonders vorteilhaft, bei welcher die in einem der Planetenradsätze zugeordneten Pumpenauslässe in einer der Gehäuseplatten jeweils als Steckanschluss ausgebildet sind. Damit können beispielsweise Schlauchleitungen unmittelbar durch eine einfache Steckverbindung an den Pumpenauslässen gehalten werden. Aufwändige Gewindeverschlüsse, die einen hohen Montageaufwand erfordern, sind somit entbehrlich.Since such a device for wetting several threads is preferably used for a larger number of threads in the range of 12 to 32 threads and thus a total of 12 to 32 delivery lines are to be connected to the corresponding number of pump outlets, the development of the invention is particularly advantageous, in which the pump outlets associated in one of the planetary gear sets are each designed as a plug-in connection in one of the housing plates. This means that, for example, hose lines can be held directly to the pump outlets with a simple plug-in connection. Elaborate threaded fasteners, which require a high level of installation effort, are therefore unnecessary.

Die erfindungsgemäße Dosierpumpe ist somit besonders geeignet, um eine größere Mehrzahl von gleichmäßig erzeugten Dosierströmen des Fluids zu erzeugen. Die Planetenradsätze sind dabei bevorzugt mit mehreren Planetenrädern ausgeführt, um eine hohe Dichte der Pumpenauslässe pro Gehäuseplatte zu erhalten. Die Anzahl der Planetenräder pro Planetenradsatz liegt im Bereich von 2 bis 6 Planetenrädern.The metering pump according to the invention is therefore particularly suitable for generating a larger number of evenly generated metering flows of the fluid. The planetary gear sets are preferably designed with several planet gears in order to obtain a high density of pump outlets per housing plate. The number of planetary gears per planetary gear set is in the range from 2 to 6 planetary gears.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels der erfindungsgemäßen Vorrichtung sowie der erfindungsgemäßen Dosierpumpe unter Bezug auf die beigefügten Figuren näher erläutert.The invention is explained in more detail below using an exemplary embodiment of the device according to the invention and the metering pump according to the invention with reference to the attached figures.

Es stellen dar:

Fig. 1
schematisch eine Ansicht eines Ausführungsbeispiels der erfindungsgemäßen Vorrichtung zur Benetzung mehrerer Fäden
Fig. 2
schematisch eine Längsschnittansicht der erfindungsgemäßen Dosierpumpe des Ausführungsbeispiels aus Fig. 1
Fig. 3
schematisch eine weitere Längsschnittansicht der erfindungsgemäßen Dosierpumpe des Ausführungsbeispiels aus Fig. 1
Fig. 4
schematisch eine Querschnittsansicht der erfindungsgemäßen Dosierpumpe des Ausführungsbeispiels aus Fig. 1
Fig. 5
schematisch eine Querschnittsansicht eines Schrittmotors zum Antreiben einer erfindungsgemäßen Dosierpumpe
Fig. 6
schematisch eine Längsschnittansicht eines weiteren Ausführungsbeispiels der erfindungsgemäßen Dosierpumpe
Fig. 7
schematisch eine weitere Längsschnittansicht des Ausführungsbeispiels aus Fig.6
Fig.8
schematisch eine Querschnittansicht des Ausführungsbeispiels aus Fig.6
They represent:
1
schematically a view of an embodiment of the device according to the invention for wetting several threads
2
schematically shows a longitudinal sectional view of the metering pump according to the invention of the embodiment 1
3
schematically another longitudinal sectional view of the metering pump according to the invention of the embodiment 1
4
schematically shows a cross-sectional view of the metering pump according to the invention of the embodiment 1
figure 5
schematically shows a cross-sectional view of a stepper motor for driving a metering pump according to the invention
6
schematically a longitudinal sectional view of a further embodiment of the metering pump according to the invention
7
schematically shows another longitudinal sectional view of the embodiment Fig.6
Fig.8
schematically shows a cross-sectional view of the embodiment Fig.6

In der Fig. 1 ist ein Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung zur Benetzung mehrerer Fäden schematisch dargestellt. Das Ausführungsbeispiel weist mehrere Benetzungsmittel 1.1 bis 1.6 auf. Die Anzahl der Benetzungsmittel ist beispielhaft. Grundsätzlich richtet sich die Anzahl der Benetzungsmittel nach der Anzahl der Fäden, die parallel nebeneinander als eine Gruppe gleichzeitig zu benetzen sind. Als Benetzungsmittel 1.1 bis 1.6 ist hierbei beispielhaft ein Benetzungskörper 2 gezeigt, der an einer Seite eine offene Benetzungsnut 3 aufweist. In der Benetzungsnut 3 mündet eine Dosierbohrung 4. Die Dosierbohrung 4 ist mit einer der Förderleitungen 5.1 bis 5.6 verbunden.In the 1 an embodiment of a device according to the invention for wetting several threads is shown schematically. The exemplary embodiment has several wetting agents 1.1 to 1.6. The number of wetting agents is exemplary. In principle, the number of wetting agents depends on the number of threads that are to be wetted in parallel next to one another as a group. As a wetting agent 1.1 to 1.6, a wetting body 2 is shown here by way of example, which has an open wetting groove 3 on one side. In the wetting groove 3 opens a metering hole 4. The metering hole 4 is connected to one of the delivery lines 5.1 to 5.6.

Das in Fig. 1 dargestellte Benetzungsmittel in Form eines Benetzungskörpers 2 ist beispielhaft. Grundsätzlich können derartige Benetzungsmittel zum Präparieren eines Fadens oder beispielsweise zur Kühlung eines Fadens genutzt werden. Je nach Anwendungsfalls sind die Benetzungsmittel entsprechend ausgeführt. So werden beispielsweise zur Kühlung von Fäden langgezogene Benetzungsnuten verwendet, denen in einem Einlaufbereich das Fluid zugeführt wird.This in 1 shown wetting agent in the form of a wetting body 2 is exemplary. In principle, such wetting agents can be used to prepare a thread or, for example, to cool a thread. Depending on the application, the wetting agents are designed accordingly. For example, elongated wetting grooves are used to cool threads, to which the fluid is fed in an inlet area.

Jedes der Benetzungsmittel 1.1 bis 1.6 ist über eine separate Förderleitung 5.1 bis 5.6 mit einer Dosierpumpe 6 verbunden. Hierzu weist die Dosierpumpe 6 eine Mehrzahl von Fördermitteln auf, denen jeweils ein von mehreren Pumpenauslässen 7.1 bis 7.6 zugeordnet sind. An den Pumpenauslässen 7.1 bis 7.6 sind die Förderleitungen 5.1 bis 5.6 angeschlossenen.Each of the wetting agents 1.1 to 1.6 is connected to a metering pump 6 via a separate delivery line 5.1 to 5.6. For this purpose, the metering pump 6 has a plurality of conveying means, each of which is assigned one of a plurality of pump outlets 7.1 to 7.6. The delivery lines 5.1 to 5.6 are connected to the pump outlets 7.1 to 7.6.

Die Dosierpumpe 6 ist über einen Pumpeneinlass 17 und einer Zulaufleitung 30 mit einem hier nicht dargestellten Fluidspeicher verbunden, welcher ein für die Benetzung vorgesehenes Fluid vorhält. Die Dosierpumpe 6 wird über einen Elektromotor 31 angetrieben, der beispielsweise als Schrittmotor ausgeführt sein könnte.The dosing pump 6 is connected via a pump inlet 17 and a feed line 30 to a fluid reservoir, not shown here, which stores a fluid intended for wetting. The metering pump 6 is driven by an electric motor 31, which could be designed as a stepping motor, for example.

Der Aufbau der Dosierpumpe 6 sowie der Aufbau der Fördermittel wird nachfolgend unter Bezug zu den Figuren 2 bis 4 näher beschrieben.The structure of the metering pump 6 and the structure of the funding is below with reference to the Figures 2 to 4 described in more detail.

In den Fig. 2 und 3 ist jeweils eine Längsschnittansicht der Dosierpumpe 6 und in Fig. 4 ein Querschnitt der Dosierpumpe 6 gezeigt. Insoweit kein ausdrücklicher Bezug zu einer der Figuren gemacht ist, gilt die nachfolgende Beschreibung für alle Figuren.In the 2 and 3 is a longitudinal sectional view of the metering pump 6 and in 4 a cross section of the metering pump 6 is shown. So far no explicit reference is made to one of the figures, the following description applies to all figures.

Die Dosierpumpe 6 besteht aus mehreren Gehäuseplatten 12.1 bis 12.4, die in diesem Fall einen kreisförmigen Querschnitt aufweisen. Die Gehäuseplatten 12.1 bis 12.4 schließen zwischen sich mehrere Planetenradsätze 8.1 bis 8.3 ein, die jeweils innerhalb einer Zentrierplatte 11.1 bis 11.3 umschlossen sind. Die Gehäuseplatten 12.1 bis 12.4 und die dazwischen liegenden Zentrierplatten 11.1 bis 11.3 sind druckdicht zusammengehalten.The metering pump 6 consists of several housing plates 12.1 to 12.4, which in this case have a circular cross section. The housing plates 12.1 to 12.4 enclose between them a plurality of planetary gear sets 8.1 to 8.3, which are each enclosed within a centering plate 11.1 to 11.3. The housing plates 12.1 to 12.4 and the centering plates 11.1 to 11.3 lying between them are held together in a pressure-tight manner.

Jedes der Planetenradsätze 8.1 bis 8.3 bildet mehrere Fördermittel, die nachfolgend anhand der Darstellung in Fig. 4 näher beschrieben werden.Each of the planetary gear sets 8.1 to 8.3 forms a plurality of conveying means, which are explained below using the illustration in 4 be described in more detail.

Wie aus der Darstellung in Fig. 4 hervorgeht, weist eines der Planetenradsätze, in diesem Fall der Planetenradsatz 8.1 zwei äußere Planetenräder 9.1 und 9.2 sowie ein im Zentrum angeordnetes Sonnenrad 10 auf. Das Sonnenrad 10 ist über eine Wellennabenverbindung 29 am Umfang einer Antriebswelle 19 gehalten. Die Planetenräder 9.1 und 9.2 sind gegenüberliegend zu beiden Seiten des Sonnrades 10 angeordnet und stehen mit dem Sonnenrad 10 im Eingriff. Die Planetenräder 9.1 und 9.2 werden hierzu in der Zentrierplatte 11.1 frei geführt. Im Bereich kurz vor und kurz hinter den Zahneingriffen der Planetenräder 9.1 und 9.2 mit dem Sonnenrad 10 weist die Zentrierplatte 11.1 jeweils einen Freiraum auf, die als Einlaufzone und als Auslaufzone wirken. Für den Fall, dass das Sonnenrad 10 entgegengesetzt zum Uhrzeigersinn angetrieben wird, bildet sich im oberen Bereich zwischen dem Planetenrad 9.1 und dem Sonnenrad 10 eine erste Einlaufzone 27.1 aus. Auf der zum Zahneingriff gegenüberliegenden Seite ist die Auslaufzone 28.1 ausgebildet. Die Einlaufzone wird in der Fachwelt auch als Saugraum und die Auslaufzone als Druckraum bezeichnet. Auf der gegenüberliegenden Seite ist eine zweite Einlaufzone 27.2 unterhalb des Zahneingriffes zwischen dem Planetenrad 9.2 und dem Sonnenrad 10 ausgeführt. Demgegenüber auf der oberen Seite des Zahneingriffes befindet sich die Auslaufzone 28.2.As shown in the illustration in 4 shows, one of the planetary gear sets, in this case the planetary gear set 8.1, has two outer planet gears 9.1 and 9.2 and a sun gear 10 arranged in the center. The sun gear 10 is held on the circumference of a drive shaft 19 via a shaft hub connection 29 . The planet wheels 9.1 and 9.2 are arranged opposite one another on both sides of the sun wheel 10 and are in engagement with the sun wheel 10. For this purpose, the planetary gears 9.1 and 9.2 are guided freely in the centering plate 11.1. In the area just before and just behind the meshing of the planet gears 9.1 and 9.2 with the sun gear 10, the centering plate 11.1 has a free space that acts as an inlet zone and outlet zone. In the event that the sun gear 10 is driven counterclockwise, a first run-in zone 27.1 is formed in the upper area between the planetary gear 9.1 and the sun gear 10. The run-out zone 28.1 is formed on the side opposite to the tooth engagement. The lead-in zone is also used in the professional world referred to as the suction space and the outlet zone as the pressure space. On the opposite side there is a second run-in zone 27.2 below the meshing between the planet wheel 9.2 and the sun wheel 10. In contrast, on the upper side of the meshing is the run-out zone 28.2.

Der in Fig. 4 dargestellte Planetenradsatz 8.1 bildet somit zwei Fördermittel, die zwei separate Dosierströme des Fluids erzeugen. Die Anzahl der Planetenräder 9.1 und 9.2 ist beispielhaft. So könnte am Sonnenrad 10 auch mehr als zwei Planetenräder zugeordnet werden.the inside 4 illustrated planetary gear set 8.1 thus forms two funds that generate two separate metering flows of the fluid. The number of planet gears 9.1 and 9.2 is exemplary. Thus, more than two planetary gears could also be assigned to the sun gear 10 .

Wie aus der Darstellung in Fig. 4 weiter hervorgeht, sind den Einlaufzonen 27.1 und 27.2 jeweils eine Verteilnut 18.1 und 18.2 zugeordnet, die an einer Seite der Gehäuseplatte 12.2 ausgebildet sind. Die Verteilnuten 18.1 und 18.2 erstrecken sich hierbei von den Einlaufzonen 27.1 und 27.2 jeweils zu einer Durchlassöffnung 13, die in den Planetenrädern 9.1 und 9.2 eingebracht ist.As shown in the illustration in 4 further shows that the inlet zones 27.1 and 27.2 are each assigned a distribution groove 18.1 and 18.2, which are formed on one side of the housing plate 12.2. The distribution grooves 18.1 and 18.2 in this case extend from the inlet zones 27.1 and 27.2 in each case to a passage opening 13 which is introduced into the planet gears 9.1 and 9.2.

Zur weiteren Erläuterung der Befüllung der Einlaufzonen 27.1 und 27.2 wird nachfolgend Bezug zu der Fig. 2 genommen.For further explanation of the filling of the inlet zones 27.1 and 27.2, reference is made to FIG 2 taken.

Wie aus der Darstellung in Fig. 2 hervorgeht, weisen alle Planetenräder 9.1 und 9.2 der Planetenradsätze 8.1 bis 8.3 jeweils eine Durchlassöffnung 13 auf. Die Durchlassöffnungen 13 sind bevorzugt im mittleren Bereich der Planetenräder 9.1 und 9.2 ausgebildet. Die Durchlassöffnungen 13 sind über ein Kanalsystem 14 mit einem Pumpeneinlass 17 verbunden. In diesem Fall wird das Kanalsystem 14 durch mehrere Gehäusebohrungen in den Gehäuseplatten 12.1, 12.2 und 12.3 gebildet. Hierzu sind mehrere axial verlaufende Verteilbohrungen 15 ausgeführt, die die Gehäuseplatten 12.2 und 12.3 durchdringen und die Durchlassöffnungen 13 der Planetenräder 9.1 bzw. 9.2 in den Planetenradsätzen 8.1 bis 8.3 miteinander verbinden.As shown in the illustration in 2 shows, all planet gears 9.1 and 9.2 of the planetary gear sets 8.1 to 8.3 each have a passage opening 13. The passage openings 13 are preferably formed in the central area of the planet gears 9.1 and 9.2. The passage openings 13 are connected to a pump inlet 17 via a channel system 14 . In this case, the channel system 14 is formed by a plurality of housing bores in the housing plates 12.1, 12.2 and 12.3. For this purpose, several axially running Running distribution holes 15, which penetrate the housing plates 12.2 and 12.3 and connect the passage openings 13 of the planetary gears 9.1 and 9.2 in the planetary gear sets 8.1 to 8.3.

An der äußeren Gehäuseplatte 12.1, die von der Antriebswelle 19 durchdrungen wird, ist der Pumpeneinlass 17 ausgebildet. Der Pumpeneinlass 17 ist über einen Einlasskanal 16.1 mit einer Einlasskammer 20 im Innern der Gehäuseplatte 12.1 verbunden. Die Einlasskammer 20 ist konzentrisch zu der Antriebswelle 19 ausgeführt und wird nach außen hin durch eine Dichtung 21 abgedichtet. Die Einlasskammer 20 ist durch zwei als Gehäusebohrungen schräg angeordnete Einlassbohrungen 16.2 und 16.3 mit den Durchlassöffnungen 13 in den Planetenrädern 9.1 und 9.2 des ersten Planetenradsatzes 8.1 verbunden. Somit lässt sich ein über den Pumpeneinlass 17 zugeführtes Fluid den Durchlassöffnungen 13 in den Planetenrädern aller Planetenradsätze 8.1 bis 8.3 zuführen.The pump inlet 17 is formed on the outer housing plate 12.1, through which the drive shaft 19 passes. The pump inlet 17 is connected to an inlet chamber 20 inside the housing plate 12.1 via an inlet channel 16.1. The inlet chamber 20 is designed concentrically to the drive shaft 19 and is sealed off from the outside by a seal 21 . The inlet chamber 20 is connected to the passage openings 13 in the planet gears 9.1 and 9.2 of the first planetary gear set 8.1 by two inlet bores 16.2 and 16.3 arranged obliquely as housing bores. A fluid supplied via the pump inlet 17 can thus be supplied to the passage openings 13 in the planet gears of all planetary gear sets 8.1 to 8.3.

Wie bereits anhand der Fig. 4 gezeigt und beschrieben, weisen die Gehäuseplatten 12.3 und 12.4 an den zu den Planetenradsätzen 8.2 und 8.3 gewandten Seite ebenfalls mehrere Verteilnuten 18.1 und 18.2 auf, um die Durchlassöffnungen 13 der Planetenräder 9.1 und 9.2 mit den Einlaufzonen 27.1 und 27.2 der Planetenradsätze 8.2 und 8.3 zu verbinden.As already based on the 4 shown and described, the housing plates 12.3 and 12.4 also have several distribution grooves 18.1 and 18.2 on the side facing the planetary gear sets 8.2 and 8.3, in order to connect the passage openings 13 of the planetary gears 9.1 and 9.2 with the inlet zones 27.1 and 27.2 of the planetary gear sets 8.2 and 8.3 .

Wie aus der Darstellung in Fig. 4 hervorgeht, sind die Auslaufzonen 28.1 und 28.2 des Planetenradsatzes 8.1 über jeweils eine axiale Auslassbohrung 26.1 und 26.2 in der Gehäuseplatte 12.2 mit jeweils einem Pumpenauslass verbunden.As shown in the illustration in 4 shows, the outlet zones 28.1 and 28.2 of the planetary gearset 8.1 are each connected to a pump outlet via an axial outlet bore 26.1 and 26.2 in the housing plate 12.2.

Wie aus der Darstellung in Fig. 3 hervorgeht, münden die axialen Auslassbohrungen 26.1 und 26.2 jeweils in eine Radialauslassbohrung 25.1 und 25.2 der Gehäuseplatte 12.2. Die radialen Auslassbohrungen 25.1 und 25.2 verbinden den am Umfang der Gehäuseplatte 12.2 ausgebildeten Pumpenauslässen 7.1 und 7.2. In diesem Ausführungsbeispiel weisen die Pumpenauslässe 7.1 und 7.2 jeweils eine Steckverbindung 24 auf, die eine direkte Anbindung eines Leitungsendes der Förderleitung ermöglicht.As shown in the illustration in 3 shows, the axial outlet bores 26.1 and 26.2 each open into a radial outlet bore 25.1 and 25.2 of the housing plate 12.2. The radial outlet bores 25.1 and 25.2 connect the pump outlets 7.1 and 7.2 formed on the circumference of the housing plate 12.2. In this exemplary embodiment, the pump outlets 7.1 and 7.2 each have a plug-in connection 24, which enables a line end of the delivery line to be connected directly.

An dieser Stelle sei jedoch ausdrücklich erwähnt, dass die Pumpenauslässe 7.1 bis 7.6 auch mit einem Gewinde ausgeführt sein könnten.At this point, however, it should be expressly mentioned that the pump outlets 7.1 to 7.6 could also be designed with a thread.

Die in den Gehäuseplatten 12.3 und 12.4 ausgebildeten Pumpenauslässe 7.3 bis 7.6 sind in gleicher Art und Weise über jeweils eine Radialauslassbohrung 25.1 und 25.2 und eine Axialauslassbohrung 26.1 und 26.2 mit den Auslaufzonen 28.1 und 28.2 der Planetenradsätze 8.2 und 8.3 verbunden.The pump outlets 7.3 to 7.6 formed in the housing plates 12.3 and 12.4 are connected in the same way via a respective radial outlet bore 25.1 and 25.2 and an axial outlet bore 26.1 and 26.2 to the outlet zones 28.1 and 28.2 of the planetary gear sets 8.2 and 8.3.

Die zum Antreiben der Planetenradsätze 8.1 und 8.3 vorgesehen Antriebswelle 19 durchdringt die Gehäuseplatten 12.1, 12.2 und 12.3 und ist mit einem Ende der Gehäuseplatte 12.4 drehbar gelagert. Mit einem hier nicht näher dargestellten Antriebsende ist die Antriebswelle 19 mit einem Elektromotor verbunden. In der Fig. 5 ist eine mögliche Ausführungsform zum Antrieb der Antriebswelle 19 dargestellt.The drive shaft 19 provided for driving the planetary gear sets 8.1 and 8.3 penetrates the housing plates 12.1, 12.2 and 12.3 and is rotatably mounted with one end of the housing plate 12.4. The drive shaft 19 is connected to an electric motor with a drive end not shown in detail here. In the figure 5 a possible embodiment for driving the drive shaft 19 is shown.

In Fig. 5 ist schematisch eine Querschnittsansicht eines Elektromotors gezeigt, der in diesem Ausführungsbeispiel ein Schrittmotor sein könnte. Der Elektromotor 31 weist ein Motorgehäuse 32 auf, das unmittelbar an der Gehäuseplatte 12.1 gehalten ist. Die Antriebswelle 19 ragt mit einem freien Antriebsende 33 ins Innere des Elektromotors 31. Am Umfang des Antriebsendes 33 ist ein Rotor 34 angeordnet, der mit einem Stator 35 zusammenwirkt. So lässt sich die Antriebswelle 19 direkt über den Elektromotor 31 antreiben.In figure 5 A cross-sectional view of an electric motor is shown schematically, which in this embodiment could be a stepping motor. The electric motor 31 has a motor housing 32 which is held directly on the housing plate 12.1. The drive shaft 19 protrudes with a free drive end 33 inside the electric motor 31. On the circumference of the drive end 33 is a rotor 34 which interacts with a stator 35 . In this way, the drive shaft 19 can be driven directly via the electric motor 31 .

Bei der in Fig. 1 dargestellten erfindungsgemäßen Vorrichtung zum Benetzen mehrerer Fäden wird die Dosierpumpe 6 durch den Elektromotor 31 mit einer vorbestimmten Drehzahl angetrieben. Hierbei wird über den Pumpeneinlass 17 und der Zulaufleitung 30 ein Fluid durch die Planetenradsätze 8.1 bis 8.3 angesaugt und den jeweiligen Einlaufzonen 27.1 und 27.2 zugeführt. Das Fluid gelangt hierbei jeweils in die Durchlassöffnungen 13 der Planetenräder 9.1 und 9.2 und durchströmt die Axialspalte gleichmäßig. Durch die Drehung der Sonnenräder 10 werden die im Eingriff befindlichen Planetenräder 9.1 und 9.2 angetrieben, so dass das Fluid aus der Einlaufzone in die Auslaufzone gefördert wird. Der dosierte Fluidstrom gelangt dann über die Pumpenauslässe 7.1 bis 7.6 in die Förderleitungen 5.1 bis 5.6 und wird den Benetzungsmitteln 1.1 bis 1.6 zugeführt. Durch die in den Zentrierplatten 11.1 bis 11.3 frei geführten Planetenräder 9.1 und 9.2 der Planetenradsätze 8.1 bis 8.3 werden sehr geringe Kopfspiele und damit sehr geringe Toträume realisiert. Zudem ist eine kontinuierliche Durchspülung der Axialspalte bei den Planetenradsätzen 8.1 bis 8.3 gewährleistet, so dass ein kontinuierlicher Fluidfluss innerhalb der Pumpe stattfindet. Die erfindungsgemäße Vorrichtung ermöglicht somit einen kontinuierlichen Betrieb mit im Wesentlichen gleichmäßigen dosierten Fluidströmen um die Fäden zu benetzen. Insoweit können hohe Dosiergenauigkeiten über eine lange Standzeit gewährleistet werden.At the in 1 illustrated device according to the invention for wetting several threads, the metering pump 6 is driven by the electric motor 31 at a predetermined speed. Here, a fluid is sucked in through the planetary gear sets 8.1 to 8.3 via the pump inlet 17 and the feed line 30 and fed to the respective inlet zones 27.1 and 27.2. The fluid gets here in each case into the passage openings 13 of the planet gears 9.1 and 9.2 and flows through the axial gaps evenly. The planetary gears 9.1 and 9.2 that are in mesh are driven by the rotation of the sun gears 10, so that the fluid is conveyed from the inlet zone to the outlet zone. The metered fluid flow then reaches the delivery lines 5.1 to 5.6 via the pump outlets 7.1 to 7.6 and is fed to the wetting agents 1.1 to 1.6. The planetary gears 9.1 and 9.2 of the planetary gear sets 8.1 to 8.3, which are freely guided in the centering plates 11.1 to 11.3, result in very small head clearances and therefore very small dead spaces. In addition, a continuous flushing of the axial gaps in the planetary gear sets 8.1 to 8.3 is ensured, so that there is a continuous flow of fluid within the pump. The device according to the invention thus enables continuous operation with substantially evenly metered fluid flows in order to wet the threads. In this respect, high dosing accuracy can be guaranteed over a long service life.

Die erfindungsgemäße Vorrichtung gemäß dem Ausführungsbeispiel nach Fig. 1 wird mit einer Dosierpumpe betrieben, die mehrere Planetenradsätze zur Bildung der Fördermittel aufweist. Hierbei besteht jeder der Planetenradsätze aus zwei Planetenrädern und einem Sonnenrad. Diese Ausbildung ist beispielhaft. So könnte bereits ein Planetenradsatz mit mehreren Planetenrädern genutzt werden, um die Benetzungsmittel der erfindungsgemäßen Vorrichtung gemäß Fig. 1 mit einem Fluid zu versorgen. Ein derartiges Ausführungsbeispiel einer Dosierpumpe 6 ist in den Fig. 6, 7 und 8 in mehreren Ansichten dargestellt. Die Fig. 6 und 7 zeigen jeweils eine Längsschnittansicht und Fig. 8 eine Querschnittsansicht der Dosierpumpe 6. Insoweit kein ausdrücklicher Bezug zu einer der Figuren gemacht ist, gilt die nachfolgende Beschreibung für alle Figuren.The inventive device according to the embodiment 1 is operated with a metering pump that has several planetary gear sets for the formation of funds. Each of the planetary gear sets consists of two planet gears and one sun gear. This training is exemplary. A planetary gear set with several planetary gears could already be used in accordance with the wetting agent of the device according to the invention 1 to be supplied with a fluid. Such an embodiment of a metering pump 6 is in the 6 , 7 and 8th shown in several views. the 6 and 7 show a longitudinal sectional view and 8 a cross-sectional view of the metering pump 6. Insofar as no express reference is made to one of the figures, the following description applies to all figures.

Das Ausführungsbeispiel der Dosierpumpe 6 nach den Fig. 6 bis 8 besteht aus den Gehäuseplatten 12.1 und 12.2, die in diesem Beispiel ebenfalls einen kreisförmigen Querschnitt aufweisen. An dieser Stelle sei jedoch erwähnt, dass die Außenkontur der Gehäuseplatten 12.1 und 12.2 eine beliebige Gestalt beispielsweise auch eine eckige Form aufweisen kann. Die Gehäuseplatten 12.1 und 12.2 schließen zwischen sich ein Planetenradsatz 8.1 ein, das innerhalb einer Zentrierplatte 11.1 umschlossen ist. Die Gehäuseplatten 12.1 und 12.2 und die dazwischenliegende Zentrierplatte 11.1 sind druckdicht zusammengehalten.The embodiment of the metering pump 6 according to Figures 6 to 8 consists of the housing plates 12.1 and 12.2, which also have a circular cross-section in this example. At this point, however, it should be mentioned that the outer contour of the housing plates 12.1 and 12.2 can have any shape, for example an angular shape. The housing plates 12.1 and 12.2 enclose between them a planetary gear set 8.1 which is enclosed within a centering plate 11.1. The housing plates 12.1 and 12.2 and the centering plate 11.1 in between are held together in a pressure-tight manner.

Wie aus der Darstellung in Fig. 8 hervorgeht, weist der Planetenradsatz 8.1 in diesem Ausführungsbeispiel sechs äußere Planetenräder 9.1 bis 9.6 sowie ein im Zentrum angeordnetes Sonnenrad 10 auf. Das Sonnenrad 10 ist über eine Wellennabenverbindung 29 am Umfang einer Antriebswelle 19 gehalten. Die Planetenräder 9.1 bis 9.6 sind gleichmäßig über den Umfang des Sonnenrades 10 verteilt angeordnet und stehen mit dem Sonnenrad 10 im Eingriff. Die Planetenräder 9.1 bis 9.6 werden hierzu in der Zentrierplatte 11.1 frei geführt. Somit bildet der Planetenradsatz 8.1 insgesamt sechs Fördermittel, um an den Pumpenauslässen 7.1 bis 7.6 sechs separate Dosierströme eines Fluids zum Benetzen von Fäden zu erzeugen. So könnte dieses Ausführungsbeispiel der Dosierpumpe in der Fig. 1 dargestellten Ausführung der erfindungsgemäßen Vorrichtung unmittelbar genutzt werden, um die insgesamt sechs Benetzungsmittel zu versorgen. Die Funktionsweise der Radsätze des Planetenrades 8.1 ist hierbei identisch zu dem Ausführungsbeispiel nach Fig. 4, so dass an dieser Stelle zu der vorgenannten Beschreibung Bezug genommen wird. Jedem der Zahnradpaarungen zwischen den Planetenrädern 9.1 bis 9.6 und dem Sonnenrad 10 ist somit eine Einlaufzone 27 und eine Auslaufzone 28 zugeordnet. Die den Planetenrädern 9.1 bis 9.6 zugeordneten Einlaufzonen 27 sind jeweils über eine Verteilnut 18 mit einer Durchlassöffnung 13 in einem der Planetenräder 9.1 bis 9.6 verbunden.As shown in the illustration in 8 shows that the planetary gearset 8.1 in this exemplary embodiment has six outer planetary gears 9.1 to 9.6 and a sun gear 10 arranged in the center. The sun wheel 10 is held on the circumference of a drive shaft 19 via a shaft hub connection 29 . The planet gears 9.1 to 9.6 are distributed evenly over the circumference of the sun gear 10 and are in engagement with the sun gear 10 . For this purpose, the planetary gears 9.1 to 9.6 are in the centering plate 11.1 freely managed. The planetary gear set 8.1 thus forms a total of six conveying means in order to generate six separate metered streams of a fluid for wetting threads at the pump outlets 7.1 to 7.6. So could this embodiment of the metering pump in the 1 illustrated embodiment of the device according to the invention can be used directly to supply the total of six wetting agents. The mode of operation of the wheel sets of the planet wheel 8.1 is identical to the embodiment according to FIG 4 , so that at this point reference is made to the above description. Each of the gear wheel pairs between the planet wheels 9.1 to 9.6 and the sun wheel 10 is thus assigned an entry zone 27 and an exit zone 28. The inlet zones 27 assigned to the planet gears 9.1 to 9.6 are each connected via a distribution groove 18 to a through-opening 13 in one of the planet gears 9.1 to 9.6.

Jedes der Planetenräder 9.1 bis 9.6 weist somit eine separate Durchlassöffnung 13 auf, die gemeinsam über ein Kanalsystem 14 mit einem Pumpeneinlass 17 verbunden sind, wie aus der Darstellung in Fig. 6 hervorgeht. In diesem Fall wird das Kanalsystem 14 durch mehrere Gehäusebohrungen gebildet, die sich als Einlassbohrungen 16.2 bis 16.7 die Gehäuseplatte 12.1 von einer mittleren Einlasskammer 20 bis zu der den Planetenradsatz 8.1 zugewandten Seitenwand erstrecken. Die Einlassbohrungen 16.2 bis 16.7 münden jeweils in eine der Durchlassöffnungen 13 in den Planetenrädern 9.1 bis 9.6. Der Pumpeneinlass 17 ist über einen Einlasskanal 16.1 mit der Einlasskammer 20 verbunden. In diesem Ausführungsbeispiel ist der Pumpeneinlass 17 mit einer Steckverbindung 24 ausgeführt, so dass eine direkte Anbindung eines Leitungsendes der Zulaufleitung möglich ist.Each of the planet gears 9.1 to 9.6 thus has a separate through-opening 13, which are jointly connected to a pump inlet 17 via a channel system 14, as can be seen from the illustration in FIG 6 emerges. In this case, the channel system 14 is formed by a plurality of housing bores, which extend as inlet bores 16.2 to 16.7 in the housing plate 12.1 from a middle inlet chamber 20 to the side wall facing the planetary gear set 8.1. The inlet bores 16.2 to 16.7 each open into one of the passage openings 13 in the planet gears 9.1 to 9.6. The pump inlet 17 is connected to the inlet chamber 20 via an inlet channel 16.1. In this exemplary embodiment, the pump inlet 17 is designed with a plug-in connection 24, so that a line end of the feed line can be connected directly.

An der äußeren Gehäuseplatte 12.1, die von der Antriebswelle 19 durchdrungen wird, ist der Pumpeneinlass 17 ausgebildet. Die Antriebswelle 19 sowie die Einlasskammer 20 ist in der Gehäuseplatte 12.1 durch eine Dichtung 21 nach außen hin abgedichtet.The pump inlet 17 is formed on the outer housing plate 12.1, through which the drive shaft 19 passes. The drive shaft 19 and the inlet chamber 20 are sealed off from the outside by a seal 21 in the housing plate 12.1.

Wie bereits aus der Darstellung in Fig. 8 hervorgeht, sind die Auslasszonen 28 des Planetenradsatzes 8.1 über jeweils eine axiale Auslassbohrung 26 in der Gehäuseplatte 12.2 mit einem der Pumpenauslässe 7.1 bis 7.6 verbunden.As already shown in the illustration in 8 shows, the outlet zones 28 of the planetary gear set 8.1 are each connected to one of the pump outlets 7.1 to 7.6 via an axial outlet bore 26 in the housing plate 12.2.

Wie aus der Darstellung in Fig. 7 hervorgeht, münden die axialen Auslassbohrungen 26 jeweils in eine Radialauslassbohrung 25 der Gehäuseplatte 12.2. Die radialen Auslassbohrungen 25 verbinden den am Umfang der Gehäuseplatte 12.2 ausgebildeten Pumpenauslässen 7 mit den jeweiligen Auslaufzonen des betreffenden Zahnradpaares. Somit weist dieses Ausführungsbeispiel insgesamt sechs Pumpenauslässe auf, wobei in Fig. 7 nur die Pumpenauslässe 7.1 und 7.4 dargestellt sind. In diesem Ausführungsbeispiel weisen die Pumpenauslässe 7.1 und 7.4 ebenfalls jeweils eine Steckverbindung 24 auf, die eine direkte Anbindung eines Leitungsendes der Förderleitung ermöglicht.As shown in the illustration in 7 shows, the axial outlet bores 26 each open into a radial outlet bore 25 of the housing plate 12.2. The radial outlet bores 25 connect the pump outlets 7 formed on the circumference of the housing plate 12.2 with the respective outlet zones of the respective pair of gear wheels. Thus, this embodiment has a total of six pump outlets, with in 7 only the pump outlets 7.1 and 7.4 are shown. In this exemplary embodiment, the pump outlets 7.1 and 7.4 likewise each have a plug-in connection 24, which enables direct connection of one line end of the delivery line.

Wie aus den Darstellungen in Fig. 6 und 7 hervorgeht, ist die Antriebswelle 19 mit einem Ende in der Gehäuseplatte 12.2 gelagert. Mit einem hier nicht dargestellten gegenüberliegenden Ende ist die Antriebswelle 19 mit einem Antrieb gekoppelt. Die Verbindung zwischen dem Sonnenrad 10 des Planetenradsatzes 8.1 und der Antriebswelle 19 ist in diesem Ausführungsbeispiel durch eine Wellennabenverbindung 29 ausgeführt.As can be seen from the illustrations in 6 and 7 shows, the drive shaft 19 is mounted at one end in the housing plate 12.2. The drive shaft 19 is coupled to a drive with an opposite end, not shown here. The connection between the sun gear 10 of the planetary gear set 8.1 and the drive shaft 19 is implemented by a shaft hub connection 29 in this exemplary embodiment.

In Betrieb lassen sich somit insgesamt sechs Fördermittel bilden, die sechs gleichmäßig dosierte Fluidströme erzeugt und über die Pumpenauslässe 7.1 bis 7.6 abgibt. Insoweit ist das Ausführungsbeispiel der Dosierpumpe auch mit nur einem Planetenradsatz 8.1 geeignet, um die in Fig. 1 dargestellte Vorrichtung auszuführen.In operation, a total of six conveying means can thus be formed, which generate six evenly metered fluid streams and deliver them via the pump outlets 7.1 to 7.6. In this respect, the embodiment of the metering pump is also suitable with only one planetary gear set 8.1 to 1 perform device shown.

An dieser Stelle wird darauf hingewiesen, dass die Ausbildung der Gehäusebohrungen in den dargestellten Ausführungsbeispielen der erfindungsgemäßen Dosierpumpe beispielhaft sind. Wesentlich hierbei ist, dass der Pumpeneinlass mit den Durchlassöffnungen in den Planetenrädern verbunden ist. Hierbei können auch mehrere Pumpeneinlässe verwendet werden, um die konstruktive Ausbildung des Kanalsystems zu verändern. Um eine möglichst störungsfreie Benetzung ohne Ausgasungen zu erhalten, ist die Zuführung des Fluids über die Planetenräder besonders vorteilhaft. So wird eine gleichmäßige Umspülung der Planetenräder erreicht, die mit minimalen Totvolumen in dem Planetenradsatz integriert sind.At this point it is pointed out that the design of the housing bores in the illustrated exemplary embodiments of the metering pump according to the invention are exemplary. It is essential here that the pump inlet is connected to the passage openings in the planet gears. Several pump inlets can also be used here in order to change the design of the channel system. In order to obtain a wetting that is as trouble-free as possible without outgassing, the supply of the fluid via the planet gears is particularly advantageous. This achieves an even flow around the planetary gears, which are integrated into the planetary gear set with minimal dead volume.

Claims (14)

  1. Device for wetting multiple threads with a fluid, having multiple wetting means (1.1 - 1.6) assigned to the threads and having a dosing pump (6) which is connected to the wetting means (1.1 - 1.6) by multiple conveying lines (5.1 - 5.6), wherein the dosing pump (6) has multiple conveying means (8.1) for generating multiple dosing flows of the fluid and has multiple pump outlets (7.1 - 7.6), to which the conveying lines (5.1 - 5.6) are connected, and wherein the conveying means are formed by at least one planetary gear set (8.1) arranged between housing plates (12.1, 12.2), characterized in that multiple planet gears (9.1 - 9.6) of the planetary gear set (8.1) are guided freely by a centering plate (11.1) between adjacent housing plates (12.1, 12.2), in that the planet gears (9.1 - 9.6) of the planetary gear set (8.1 - 8.3) have in each case one passage opening (13), and in that the passage openings (13) of the planet gears (9.1, 9.2) are connected by a channel system (14) to at least one pump inlet (17).
  2. Device according to Claim 1, characterized in that the channel system (14) has multiple housing bores (15, 16.2, 16.3) in the housing plates (12.1, 12.2, 12.3), which housing bores open into the passage openings (13) of the planet gears (9.1, 9.2) of the planetary gear set (8.1 - 8.3).
  3. Device according to Claim 2, characterized in that multiple planetary gear sets (8.1 - 8.3) are held between the housing plates (12.1 - 12.4), and in that the housing bores have multiple inlet bores (16.2, 16.3) in one of the housing plates (12.1 - 12.4) and multiple axial distribution bores (15) in the housing plates (12.1 - 12.4) arranged between adjacent planetary gear sets (8.1 - 8.3).
  4. Device according to any of Claims 1 to 3, characterized in that the housing plates (12.1 - 12.4) have, on a side facing toward the planetary gear set (8.1 - 8.3), multiple distribution grooves (18.1, 18.2) which extend in each case between one of the passage openings (13) and one of multiple run-in zones (27.1, 27.2) of the planetary gear sets (8.1 - 8.3).
  5. Device according to any of Claims 1 to 4, characterized in that the planetary gear sets (8.1 - 8.3) are connected to a drive shaft (19), and in that the drive shaft (19) is coupled to a stepper motor (31).
  6. Device according to Claim 5, characterized in that the stepper motor (31) is held with a housing (32) on the outer housing plate (12.1), and in that the drive shaft (19) is connected directly to a rotor (34) of the stepper motor (31).
  7. Device according to any of Claims 1 to 6, characterized in that the pump outlets (7.1 - 7.6), assigned to one of the planetary gear sets (8.1 - 8.3), in one of the housing plates (12.2 - 12.4) are formed in each case as a plug-in connector (24).
  8. Dosing pump, in particular for use in a device for wetting threads, having multiple conveying means (8.1) which are assigned separate pump outlets (7.1 - 7.6), wherein the conveying means (8.1) are formed by at least one planetary gear set (8.1) arranged between housing plates (12.1, 12.2), characterized in that multiple planet gears (9.1 - 9.6) of the planetary gear set (8.1) are guided by a centering plate (11.1) between adjacent housing plates (12.1, 12.2), wherein the planet gears (9.1 - 9.6) of the planetary gear set (8.1) have in each case one passage opening (13), and wherein the passage openings (13) of the planet gears (9.1 - 9.6) are connected by a channel system (14) to at least one pump inlet (17).
  9. Dosing pump according to Claim 8, characterized in that the channel system (14) has multiple housing bores (15, 16.2, 16.3) in the housing plates (12.1, 12.2, 12.3), which housing bores open into the passage openings (13) of the planet gears (9.1, 9.2) of the planetary gear set (8.1 - 8.3).
  10. Dosing pump according to Claim 9, characterized in that multiple planetary gear sets (8.1 - 8.3) are held between the housing plates (12.1 - 12.4), and in that the housing bores have multiple inlet bores (16.2, 16.3) in one of the housing plates (12.1 - 12.4) and multiple axial distribution bores (15) in the housing plates (12.1 - 12.4) arranged between adjacent planetary gear sets (8.1 - 8.3).
  11. Dosing pump according to any of Claims 8 to 10, characterized in that the housing plates (12.2 - 12.4) have, on a side facing toward the planetary gear set (8.1 - 8.3), multiple distribution grooves (18.1, 18.2) which extend in each case between one of the passage openings (13) and one of multiple run-in zones (27.1, 27.2) of the planetary gear sets (8.1 - 8.3).
  12. Dosing pump according to any of Claims 8 to 11, characterized in that the planetary gear sets (8.1 - 8.3) are connected to a drive shaft (19), and in that the drive shaft (19) is coupled to a stepper motor (31).
  13. Dosing pump according to Claim 12, characterized in that the stepper motor (31) is held with a housing (32) on the outer housing plate (12.1), and in that the drive shaft (19) is connected directly to a rotor (34) of the stepper motor (31).
  14. Dosing pump according to any of Claims 8 to 13, characterized in that the pump outlets (7.1 - 7.6), assigned to one of the planetary gear sets (8.1 - 8.3), in one of the housing plates (12.2 - 12.4) are formed in each case as a plug-in connector (24).
EP18700030.2A 2017-01-12 2018-01-03 Device for wetting a plurality of threads, and metering pump for such a device Active EP3568514B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102017000243 2017-01-12
DE102017000760.8A DE102017000760A1 (en) 2017-01-27 2017-01-27 Device for wetting a plurality of threads and metering pump for such a device
PCT/EP2018/050126 WO2018130445A1 (en) 2017-01-12 2018-01-03 Device for wetting a plurality of threads, and metering pump for such a device

Publications (2)

Publication Number Publication Date
EP3568514A1 EP3568514A1 (en) 2019-11-20
EP3568514B1 true EP3568514B1 (en) 2022-07-27

Family

ID=60923512

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18700030.2A Active EP3568514B1 (en) 2017-01-12 2018-01-03 Device for wetting a plurality of threads, and metering pump for such a device

Country Status (5)

Country Link
US (1) US11221006B2 (en)
EP (1) EP3568514B1 (en)
JP (1) JP7044790B2 (en)
CN (1) CN110249089B (en)
WO (1) WO2018130445A1 (en)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH109115A (en) * 1923-07-01 1925-02-16 Schlumpf Jacques Device for dyeing loose textile fibers, yarn, fabrics, etc.
CN1105715A (en) * 1994-04-29 1995-07-26 唐浩昌 Pulseless spinning pump
TW509738B (en) 1999-03-25 2002-11-11 Barmag Barmer Maschf Lubrication apparatus and method of applying a lubricant
KR100503727B1 (en) * 2002-12-20 2005-07-26 임해수 A metering gear pump with one inlet and six outlet for synthetic fiber spinning
JP4190900B2 (en) * 2003-01-29 2008-12-03 三菱レイヨン株式会社 Method and apparatus for applying oil to acetate tow yarn
KR20030037245A (en) * 2003-04-09 2003-05-12 임해수 Structure of oil finish pump
EP2533719B1 (en) * 2010-02-08 2024-05-08 The Procter & Gamble Company Method of producing a coated dental floss, and dental floss
US8944792B2 (en) * 2010-05-18 2015-02-03 Illinois Tool Works Inc. Metering gear pump or segment, and metering gear pump assembly comprising a plurality of metering gear pumps or segments
CN102959245B (en) * 2010-07-02 2016-01-06 欧瑞康纺织有限及两合公司 Gear pump
WO2013110633A1 (en) * 2012-01-24 2013-08-01 Oerlikon Textile Gmbh & Co. Kg Device for wetting multiple filaments
DE102014000304A1 (en) * 2013-01-31 2014-07-31 Oerlikon Textile Gmbh & Co. Kg Device for moistening threads i.e. synthetic multifilament threads, has measuring instruments monitoring delivered flows of conveyors, and wetting agents are connected with conveyors, where measuring instruments are assigned to each agent

Also Published As

Publication number Publication date
JP7044790B2 (en) 2022-03-30
EP3568514A1 (en) 2019-11-20
US11221006B2 (en) 2022-01-11
JP2020504250A (en) 2020-02-06
WO2018130445A1 (en) 2018-07-19
CN110249089B (en) 2022-03-15
US20190331111A1 (en) 2019-10-31
CN110249089A (en) 2019-09-17

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